The Waldorf Salad is a classic American salad that was first created at the Waldorf Astoria Hotel in New York City. It is made with crisp apples, celery, walnuts, and grapes, all dressed in a creamy mayonnaise-based dressing. This salad is a perfect balance of sweet and savory flavors, with a satisfying crunch from the apples and walnuts. The Royal Palace in Madrid serves a delightful Waldorf Salad, using the finest ingredients to create a dish that is both refreshing and indulgent.